Osg 300-0827 Chucking Reamer 2.1mm Solid Carbide

Product Description

The OSG 300-0827 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. It features a 2.1 mm diameter with a diameter tolerance of +0.0001 to +0.0004 inches, ensuring tight, repeatable fits in finished bores. The 4-flute straight configuration and right-hand cutting direction deliver smooth material removal in a wide range of workpiece materials. With a 50 mm overall length and a 12 mm flute length, this reamer is well-suited for shallow to moderate-depth holes where dimensional accuracy is critical. It is part of the OSG 300D series and ships uncoated for out-of-the-box use.

This reamer is used in CNC machining centers, manual mills, and drill presses where close-tolerance hole sizing is required. It is intended for general machining applications across ferrous and non-ferrous materials. The straight cylindrical shank seats directly into standard collet chucks or drill chucks commonly found in machine shops and production environments. Machinists and tool-and-die tradespeople working on precision components, fixtures, or assemblies will find this reamer appropriate for reaming pre-drilled pilot holes to final specification.

Key Features

• 2.1 mm reamer diameter with tolerance of +0.0001 to +0.0004 inches for precision bore sizing
• Solid carbide construction for rigidity and wear resistance in demanding machining operations
• 4-flute straight configuration for efficient chip evacuation in through and blind holes
• Right-hand cutting direction with straight cylindrical shank for easy chuck mounting
• Bright uncoated finish suitable for immediate use without additional prep
• Part of the OSG 300D series, designed for standard general machining applications

Compatibility

Designed as an OEM-style general-purpose chucking reamer compatible with standard collet chucks and drill chucks accepting a straight cylindrical shank in the 2.1 mm diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the reamer from the chuck. Verify the shank is fully seated and the collet or chuck is properly tightened before operation. Always use appropriate cutting fluid or coolant for the workpiece material to maximize tool life and bore quality, noting that this reamer does not support coolant-through delivery.